I'm new to laravel and have run into some problems.
I need to use the same lookup table twice. This is a simplified example of the issue:
Say I have two tables: users and assignments
Users structure
id
username
Assignments structure:
id
description - string
user1 - unsigned
user2 - unsigned
user_id - unsigned (which identifies the person creating the assignment)
Users model:
class User extends Model
{
public function assignments() {
return $this->hasMany('App\Assignment');
}
}
Assignment model:
class Assignment extends Model
{
public function user() {
return $this->belongsTo('App\User');
}
}
I want to list all of the assignments assigned by one user.
In the AssignmentController, in the index function I pass in the $user_id and then find all of the assignments created by that user:
public function index($user_id)
{
$assignments = Assignment::whereId($user_id)->all();
return view("assignment_index", ['assignments' => $assignments]);
}
But I also need to retrieve the usernames of assignments.user1 and assignments.user2 to pass to the view.
After trying to do this with relationships, I gave up and decided to just have a query pull everything at once. The query works in HeidiSQL (db app), but I can not seem to translate it into a form that laravel will accept.
Here's the sql query I was trying to run:
SELECT assignments.*, usr1.username AS u1, usr2.username AS u2 FROM assignments
left join users AS usr1 on assignments.user1 = usr1.id
left join users AS usr2 on assignments.user2 = usr2.id
Does anyone know how I can get this query to run in laravel query builder or eloquent? Or, is there a better way to do this using additional relationships?
Any advice is greatly appreciated.
